Challenge 8
Ben 10 Attack On Titan Crossover Challenge
Ben gets transported into the world of the Titans, just before the battle of Trost, and he jumps in to help out.
Rules:
Strong Ben
Challenge 9
Ben 10 Harry Potter Crossover Challenge
During a fight with Vilgax a young (pre-hogwarts) Harry get infused with alien dna and access their powers and Ben mentors him in training.
Rules:
Harry has powers of at most 5 of Ben's aliens
Strong Harry
Ron, Molly, Snape Bashing
Manipulative Dumbledore
Mentor/Big Brother Ben
Challenge 10
Ben 10 Star Wars Crossover Challenge
After an accident with a worm hole Ben winds up the planet Felucia where he saves the Jedi Aayla Secura from order 66...
Rules:
Ben/Female Jedi Pairing
Ben Rebel Hero
Challenge 11
Ben 10 Justice League Crossover Challenge
An alien invasion is happening and it's to big for a single hero to stop and it's up to a group of heroes to stop the invasion and save the Earth.
Challenge 12
Ben 10 Marvel Crossover Challenge
Ben has become an Avenger and his dream was shattered when the Superhero registration bill has passed and lines have been drawn, now it's hero vs hero. Unfortunatly for him he and his superhero girlfriend are on opposite sides.
Rules:
Ben/Carol Danvers Pairing
Challenge 13
Ben 10 X-Men Crossover Challenge
Ben never received the Omnitrax but instead it was his x-gene activation that caused him to turn into all those different aliens.
Challenge 14
Ben 10 Marvel/DC Crossover Challenge
Ben went to Vegas to celebrate his latest victory over Vilgax and he winds up drunk and gets married to superheroine(s)/villian(s).
Rules:
No M/M or Purely F/F pairings
Optional Multiple pairings for Ben
Challenge 14
Ben 10 Star Wars Crossover Challenge
Ben gets teleported to Jabba's Palace, ending up in the Rancor Pit the same time as the female Twi'lek dancer Oola and must use his powers to save her.
Rules:
Takes Place before episode VI
Ben/Oola Pairing